/**
 * Copyright (c) 2011-2013, kidzhou 周磊 (zhouleib1412@gmail.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.jfinal.ext.kit;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Map;
import java.util.Properties;

import com.google.common.collect.Maps;

public class ResourceKit {
    public static Map<String, String> readProperties(String resourceName) {
        Properties properties = new Properties();
        InputStream inputStream = null;
		try {
			inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(resourceName);		// properties.load(Prop.class.getResourceAsStream(fileName));
			if (inputStream == null)
				throw new IllegalArgumentException("Properties file not found in classpath: " + resourceName);
			properties = new Properties();
			properties.load(new InputStreamReader(inputStream, "utf-8"));
		} catch (IOException e) {
			throw new RuntimeException("Error loading properties file.", e);
		}
		finally {
			if (inputStream != null) try {inputStream.close();} catch (IOException e) {e.printStackTrace();}
		}
        
        return Maps.fromProperties(properties);
    }

}
